Electric power plant



Nov. 27, W23 475,506

H. R. PATTERSON ELECTRIC POWER PLANT Original Filed Sent. 10 1919 I N VEN TOR, Harry R. Pa [terse/2 m/wa A TTORNEY til some Nov. 27,1923;

HARRY R. PATTERSGN, F TOLEDO, OHIO,

ELECTRIC POWER PLANT.

Application filed September 10, 1919, Serial No. 322,794. Renewed March 27, 1923.

To all whom it may concern:

Be it known that it, HARRY a citizen ct the United Toledo, in the county of Ohio, have invented certain new and useful Improvements in Electric Power, Plants, of which 1 declare the following to be a full, clear, and exact description.

This invention relates to electric power plants which include an internal combustion engine as a prime mover and a dynamo electric machine driven thereby and furnishing current to charge a storage better I to supply translating devices such as electric lamps, motors, etc.

An object of my invention is to provlde a simple economical and efficient system of the nature indicated which will be positive and reliable in its operation and which does not requirethe attention of a skilled" operator for its successful use.

E. Parrnnson, States, residing at Further ohjects'ozt this invention relate to economics of manufactureand details of construction as will hereinafter appear from the detailed description to follow. I accomplish objects of invention in one instance by the devices and means described in the following specification, but it is evi dent that the same may be. aried widely without departing from the scope of the inirention as pointed. out in the appended Gil claims. A. structure constituting one embodiment, of my inventiomwhicb may be the preferred, illustratedin the accompanying drawings forming a part thereof, in which: The single figure of the drawing is a diagraxninatio showing of my invention. 7' @n the wing. an. internal combustion cng'" is she 1 at 5 directly connected by a shaft 8 to a d came electric machine 7 113V? a shunt held w iding 8 and a third ain brushes are conose the main ccit wires ill and ll.

' 9 is connected-the ignil rd rush em for the engine comprising an in duction coil 14: lziaving a primary i5 connected to a cam driven interrupter l6 and whose secondary 18 connects with the snarl; plug 19 of the engine.

Translating devices such and a motor 21 are shown connected across the main circuit wires l0 and Hand also connected across thesewirss is a storage batas a lamp tory 22 in series with an amperehour me- Lucas and State of provided for Arranged in series with the wire 11 is an electromagnetic switch 27 having a core 28 between end heads 29 and 30. Pivoted to the and head 29 is an armature 31 normally held in a retracted position by a spring 32, whose tension may be adjusted by means of adjusting screw At its opposite end the armature 31 carries a contact member 35 in sulated from it and adapted to make contact with These two stationar contacts are mounted on the end head 30 ut insulated therefrom and from each other, the contact 3G being connected with the dynamo electric machine 7 by wire 39 forming a part of main circuit wire 11, while the contact member 37 connects by means of wire 40 with the shunt field winding 8. A suitable piece 41 of non-magnetic material prevents the armature 3]. from coming in direct contactwith the end head 30. An operating handle' ti is the purpose of depressing the annature 31 to bring the switches controlled thereby into closed circuit position. The core 28 is provided with three windings, a series or current winding 44 and two shunt or potential windings 45 and 46. One end of the series winding 44 connects with the contact member 35 carried by the armature while the other end connects with circuit wire 11. One end of each of the potential windings 4.5 and 46 connects with the wire 39 by means of a wire 47 and the opposite end of winding 45 is grounded at 48 while the opposite end of potential winding 46 connects with the movable contact 24 of the ampere hour meter. When the battery is being charged by the dynamo electric ma- Q l cif-e i 'ifi tion illustrated in the drawing, it is dc r we 'lswitclo and sired to charge the battery. The hand 42 would be rocked to depress miniature to close the shunt field circuit and the charging circuit of the dynamic electric inechine, Current will thereupon flow from the battery through the ampere hour meter, the electi'o-megnetic switch, the shunt Field winding and the armature of the dynmno electric machine wherelw this machine will operate as a motor to turn over e engine .1 circuit inn; circuit lift Suitaole E.-M. F. wilialso be supplied -ioil'i potential 11 ring for lioldiucsaid so the third brush 9 to the ignition system oi; clcsed during the ct. i11 0i the the eng1ne. The lever 41-23 will held n current W riding cunniletive with rocked osltlon until the en ine lJGfllllS lo iotentiel Windin (lurii clli f i W it z: a l :1; ga a operate under its own power reaches oettery, second DOiiQHillill 2; f

normal speed. ()urr'ent will now flow from the dynamo electric machine through. time electromagnetic switch and the battery to charge it and the combined flux due to the current winding 14 and the potential Wind-- ing 45 will now be sufficient to hold the armature 31 in closed circuit position. At the posing the combined eiiect first potent ,i win lease of said switt meter in said bettei the circuit or said sec in sys. comi'iinetion cl completion of the charge, the switch Q lQWill ijgfiitigjfy i 5 m touch the wounded contact therein: closto t-h; yr mg the clrcuit of the potential winding 41c; wgtcpi I oppose v circuit stopping the charge and causing; me tery iii-sc n a E. M. F. oi the generator to tell to e value L as t? insuflicient to provide for proper ignition The engine, accordingly, soon comes to rest and the apparatus automatically resumes the condition with which the description the operation was started' As current is drawn from the bette the translating. devices the meter operates in the opposite direct from What it did on charge end the centric member Will accordingly move away from the grounded contact and remain out contact therewith until the battery has cgeL-i been given a full cherrge.

Having thus described my i'ziventi what I claim new and desire to secure ",x Letters Patent, is:

'1. In a. system of the clues combination of c dynamo a battery incircuit tl'iereeitu ac rn to be charged thereby, eiectrod egne switch hie-sec to open circuit 1305; o. controlling said charging; circuit her potential Winding for holding closed during the charging said switch liming a current Y- opposing effect of said potential i ing upon discharge of the battery tl'iron the dynamo-electric machine, a second tential winding on said switch wouzi pose said first potentiel Winding to perm Winding SGLlSS also permit of electricity through said'battery for controlling the energization of said second potential winding. s v

6. In a system of the class described the combination of a dynamo electric machine,

a battery in circuit therewith and adapted to be charged thereby, an electromagnetic switch for controlling said charging circuit having a current Winding, a first potential winding;- Wound to act cumulatively with respect to said current winding when the battery is being charged an'd a second otential winding, wound oppositely to said first potential Windin and an ampere hour meter in series with said battery for con trolling the circuit of said second potential Winding.

7. In a system of the class described the combination of an internal combustion engine having an ignition system, a dynamo electric machine having a shunt field Winding and permanently connected to current to said ignition system, battery connected to be charged by said dynamo electric machine, a circuit for trans lating devices connected to receive current either from said dynamo electric. machine or from said battery, an electromagnetic switch in said charging circuit having a current Winding, a potential Winding Wound to act cumulatively with said current winding when the battery is being charged, a second potential winding Wound reversely to said first potential Winding, an ampere hour meter in series with said batter y having a switch for controlling the circuit of said supply a storage second potential Winding, said e1ectrornagnetic switch being constructed to controlboth its battery charging circuit and the shunt field circuit I In testimon whereof, I affix n1 signature.

I iARRY R. PAT ERSON. 

